American Geophysical Union Meeting in San Francisco with contributions from
A21B-0142. Gross Fluxes of Methyl Chloride and Methyl Bromide in a California Oak-Savanna Woodland: Seasonality, Soil Moisture and a Smaller Sink. R. C. Rhew; C. Chen; Y. Teh; D. D. Baldocchi.
A51N-07. Methane Fluxes in a Composite Landscape in the Sacramento-San Joaquin Delta. A. Guha; M. Detto; D. D. Baldocchi; A. H. Goldstein
B11D-0499. How do land management practices affect net ecosystem CO 2 exchange of an invasive plant infestation?. O. Sonnentag; M. Detto; B. Runkle; M. Kelly; D. D. Baldocchi.
B23A-0349. How does the photosynthetic machinery of invasive perennial pepperweed allow it to adapt and respond to changes in California’s climate?. B. Runkle; O. Sonnentag; M. Detto; X. Liang; J. A. Dracup; D. D. Baldocchi
B31A-0313. Spatial radiation environment in a heterogeneous oak woodland using a three-dimensional radiative transfer model and multiple constraints from observations. H. Kobayashi; Y. Ryu; S. Ustin; D. D. Baldocchi
B31A-0319. On the correct estimation of effective leaf area index: does it reveal information on clumping effects?. D. D. Baldocchi; Y. Ryu; T. Nilson; H. Kobayashi; O. Sonnentag.
B31B-0349. Integration of near-surface remote sensing and eddy covariance measurements: new insights on managed ecosystem structure and functioning. J. Hatala; O. Sonnentag; M. Detto; B. Runkle; R. Vargas; M. Kelly; D. D. Baldocchi
B33B-0390. Water Conditions Regulate Temperature Dependence of Ecosystem CO2 Exchange from a Case Study to a Variety of Ecosystem Types across Ameriflux . S. Ma; D. D. Baldocchi
B33B-0391. A Spectral Evaluation of Models Performances in Mediterranean Oak Woodlands. R. Vargas;D. D. Baldocchi; G. Abramowitz; A. Carrara; A. Correia; H. Kobayashi; D. Papale; D. Pearson; J. Pereira; S. Piao; S. Rambal; O. Sonnentag
B33F-08. FROM POINT TO GLOBE: UP-SCALING CARBON AND WATER FLUXES FROM FLUXNET EDDY COVARIANCE TOWER VIA INTEGRATION WITH GLOBAL EARTH OBSERVATION. M. Reichstein; M. Jung; C. Beer; E. Tomelleri; D. D. Baldocchi; N. Gobron; C. Roedenbeck; D. Papale.
B34B-04. Large non-CO2 fluxes from human modification of carbon rich soils . W. L. Silver; Y. Teh; O. Sonnentag; M. Detto; M. Kelly; D. D. Baldocchi
B41D-03. Potential biogeochemical and biogeophysical consequences of afforestation in North America. T. L. O'Halloran; B. E. Law; D. D. Baldocchi; G. B. Bonan; J. T. Randerson
B43E-01. Breathing of the Biosphere: How Physics sets the Limits, and Biology Does the Work (Invited). D. D. Baldocchi
B43E-03. Relationships between water status, temperature, and photosynthesis in Quercus douglassii in a California Mediterranean savanna from gas-exchange and eddy-covariance data. J. L. Osuna; D. D. Baldocchi; T. E. Dawson
B51A-0293. Impact of Rice Grown on Surface Energy Balance in the Sacramento-San Joaquin Delta and the Sacramento Valley. F. Anderson; M. Detto; J. G. Verfaillie; D. D. Baldocchi; R. L. Snyder.
B51B-0308. Spatial and temporal variability of evapotranspiration derived from MODIS and FLUXNET over US from 2001 to 2008. Y. Ryu; D. D. Baldocchi; J. Li; K. Jackson; C. van Ingen; D. Agarwal
GC13A-0711. Ecosystem Change in California Grasslands: Impacts of Species Invasion. L. E. Koteen; J. Harte; D. D. Baldocchi
H34E-08. Towards Creating a Stand-Scale Ecohydrological Measurement Suite: Observations from Integrating Multiple Hydrological and Biophysical Approaches in a California Oak Savanna (Invited). G. R. Miller; D. D. Baldocchi; Y. Rubin; X. Chen
IN31B-1007. Experiences Developing a Collaborative Data Sharing Portal for FLUXNET. D. Agarwal; M. Humphrey; N. Beekwilder; C. van Ingen; D. Papale; M. Reichstein; D. D. Baldocchi
B51A-0296 . Ecohydrology of a semi-arid forest: effects of precipitation pattern and canopy structure on forest productivity. N. Raz Yaseef; E. Rotenberg; G. Schiller; D. Yakir
'eScience in the Cloud: A MODIS Satellite Data Reprojection and Reduction Pipeline in Windows Azure Platform'), with Youngryel Ryu as a collaborator, has been accepted to the 24th IEEE International Parallel & Distributed Processing Symposium.
Rodrigo Vargas attended a North American Carbon Project workshop in Oak Ridge, TN.
Ryu, Y., O. Sonnentag, T. Nilson, R. Vargas, H. Kobayashi, R. Wenk, and D.D. Baldocchi, How to quantify tree leaf area index in an open savanna ecosystem: A multi-instrument and multi-model approach, Agricultural and Forest Meteorology, 150 (1), 63-76, 2010.
Rodrigo Vargas, Dennis Baldocchi, Michael Allen, Michael Bahn, T. Black, Scott Collins, Jorge Curiel Yuste, Takashi Hirano, Rachhpal Jassal, Jukka Pumpanen, and Jianwu Tang. Looking deeper into the soil: biophysical controls and seasonal lags of soil CO2 production and efflux across multiple vegetation types. Ecological Applications. accepted
Rutledge, S., Campbell, D., Baldocchi, D., Schipper, L. Photodegradation leads to increased CO2 losses from terrestrial organic matter. Global Change Biology. in press
Ma, S., Concilio, A., Oakley, B., North, M. & Chen, J. Spatial variability in microclimate in a mixed-conifer forest before and after thinning and burning treatments. Forest Ecology and Management in press.
Miller, G.R., Chen, X., Rubin, Y, Ma, S. Baldocchi, D.D. 2009., Groundwater uptake by woody vegetation in a semi-arid oak savanna. Water Resources Research. submitted
Rodrigo Vargas attended a Fluxnet synthesis workshop in Maine and a North American Carbon Project workshop in Reston Virginia.
Stoy, P. C., A. D. Richardson, D. D. Baldocchi, G. G. Katul, J. Stanovick, M. D. Mahecha, M. Reichstein, M. Detto, B. E. Law, G. Wohlfahrt, N. Arriga, J. Campos, J. H. McCaughey, L. Montagnani, K. T. Paw U, S. Sevanto, and M. Williams. 2009. Biosphere-atmosphere exchange of CO2 in relation to climate: a cross-biome analysis across multiple time scales. Biogeosciences J1 - BG 6 (10):2297-2312
Curiel Yuste, J., S. Ma, and D. Baldocchi. Plant-soil interactions and acclimation to temperature of microbial-mediated soil respiration may affect predictions of soil CO2 efflux. Biogeochemistry. 10.1007/s10533-009-9381-1
Vargas, R., Baldocchi, D.D., Querejeta, J.I.,Curtis, P.S., Hasselquist, N.J., Janssens, I.A, Allen, M.F., Montagnani, L. 2009. Ecosystem CO 2 fluxes of arbuscular and ectomycorrhizal dominated vegetation types are differentially influenced by precipitation and temperature. New Phytologist, Published on line
Vargas, R., Detto, M., Baldocchi, D. Allen. M. .Multiscale analysis of temporal variability of soil CO2 production as influenced by weather and vegetationGlobal Change Biology. in press
Teh, Y, Silver, W. Detto, M, Sonnentag, O, Kelly, M, Baldocchi, D. Large greenhouse gas emissions from agricultural and restored peatlands driven by management. Nature Geoscience. Submitted
Xiao, J, Zhuang, Q.,Law, B.E., Chen, J, Baldocchi, D.D., Cook, D.R., Oren, R., Richardson, A.D., Wharton, S., Ma, S., Martin, T.A., Verma, S.B., Suyker, A.E., Scott, R.L., Monson, R.K., Litvak, M., Hollinger, D.Y., Sun,G., Davis, K.J., Bolstad, P.V., Burns, S.P., Curtis, P.S., Drake, B.G., Falk, M., Fischer, M.L., Foster, D., Gu, L., Hadley, J.L., Katul, G.G., Matamala, R., McNulty, S., Meyers, T.P., Munger, J.W., Noormets, A., Oechel, W.C., Paw U, K.T., Schmid, H.P., Starr, G., Torn, M.S., Wofsy, S.C. 2009.. A Continuous Measure of Gross Primary Production for the Conterminous 1 U.S. Derived from MODIS and AmeriFlux Data. Remote Sensing of the Environment. Accepted.
Baldocchi, DD, Ma, S., Rambal, S., Ourcival, J-M, Limosin, J-M, Misson, L, Pereira, JS, Papale, D. On the Differential Advantages of Evergreenness and Deciduousness in Mediterranean Oak Woodlands: A Flux Perspective. Ecological Applications. Accepted
Detto, M., Katul, G. Baldocchi. D. Scaling properties of biologically active scalar concentration fluctuations in the surface boundary layer over a managed peatland Boundary Layer Meteorology. submitted
Ryu, Y., Nilson, T., Kobayashi, H., Sonnentag, O., Law, B.E. and Baldocchi, D.D., 2009. On the correct estimation of effective leaf area index: does it reveal information on clumping effects? Agricultural and Forest Meteorology, In review.
Naama Raz-Yaseef joins the Biomet Lab as a postdoctoral scientist for 2 years. Dr. Raz-Yaseef has funding from US-Israel Binational Agricultural Research and Development Fund. She has expertise in Ecohydrology and comes from Dan Yakir's lab at the Weizmann Institute.
Rodrigo Vargas represented the biomet lab at the Jena International CO2 Conference and a soil respiration workshop in Austria
ddb attended the annual Ameriflux meeting
Vargas R, Baldocchi DD, Bahn M, Hanson P, Kulmala L, Pumpanen J, Yiang B. A multiscale analysis of the influence of GPP on soil CO2 efflux: a wavelet coherence approach. International Carbon Dioxide Conference (ICDC). September 13-19, 2009. Jena, Germany.
Vargas R. Understanding CO2 efflux and production: do we need to look deeper into the soil? ESF LESC Exploratory Workshop: Diurnal to century scale controls on soil respiratory fluxes. Towards a new generation of integrated experimental and modeling approaches. September 21-23, 2009. Innsbruck, Austria.
ddb attended the AmeriFlux meeting in Washington, DC and lead a session on progress in FLUXNET
Ryu, Youngryel, Oliver Sonnentag, Tiit Nilson, Rodrigo Vargas, Hideki Kobayashi, Rebecca Wenk, and Dennis D. Baldocchi. How to quantify tree leaf area index in an open savanna ecosystem: A multi-instrument and multi-model approach. Agricultural and Forest Meteorology In Press.
Ryu, Y., Baldocchi, D., Ma, S. Falk, M. Verfaillie, J. A novel spectral sensor built with light emitting diodes (LEDs) to monitor ecosystem metabolism, structure and function. Frontiers in Ecology and Environment. submitted
Rodrigo Vargas was recognized as National Researcher Level 1 (out of 3 being 3 the highest category) from the CONACyT (it is the NSF of Mexico).
Jordi Vila, Wageningen
Josep Penuelas, Barcelona
ddb attended the ILEAPS meeting and gave a talk on 'Lessons Learned from 10 years of FLUXNET'
Rodrigo Vargas attended an LTER workshop in New Mexico.
Gu, L., Post, W.M., Baldocchi, D.D. Black, T.A. Suyker, A.E. Verma, S.B. Vesala, T., Wofsy, S.C. 2009. In: Phenology of Ecosystem Processes. Asko Noormets, Editor. Springer. Pg 35-58.
Vargas, R., Baldocchi, D.D., Querejeta, J.I.,Curtis, P.S., Hasselquist, N.J., Janssens, I.A, Allen, M.F., Montagnani, L. 2009. Ecosystem CO 2 fluxes of arbuscular and ectomycorrhizal dominated vegetation types are differentially influenced by precipitation and temperature. New Phytologist, in press.
Hollinger, D.Y. , S.V. Ollinger, A.D. Richardson, T.P. Meyers, D.B. Dail, M.E. Martin, N.A. Scott, T.J. Arkebauer, D.D. Baldocchi, K. Clark, P.S. Curtis, K. Davis, A. Desai, D. Dragoni, M.L. Goulden, L. Gu, G.G. Katul, S. Pallardy, K.T. Paw U, H. Schmid, P.C. Stoy, A.E. Suyker, and S.B. Verma. 2009. Albedo estimates for land surface models and support for a new paradigm based on foliage nitrogen concentration. Global Change Biology. In press.
Doug Fox and Evan Variano visited the methane flux sites on Twitchell and Sherman Island.
ddb participated on a panel discussion on 'From Farms to Forests: Carbon Implicatin of Land Use' at the 2009 Microsoft Faculty Summit.
ddb lectured at the University of Colorado Shortcourse on Flux Measurement and Modeling
Matteo Detto attended a workshop at the University of Michigan Biological Station, Pellston, MI.
Anders Lindroth, Lund University
Bart Kruij, Alterra, Wagenigen, Netherlands
Youngryel Ryu attended the 4th Global Vegetation Workshop in Missoula Montana.
ddb lectured at the 2009 Summer School on Land-Atmosphere Interactions and Climate Change at the Nanjing Institute of Science and Technology. He also visited the Institute for Geographical Science and Natural Resource Research, of the Chinese Academey of Science in Beijing.
Beer, C., P. Ciais, M. Reichstein, D. Baldocchi, B. E. Law, D. Papale, J.-F. Soussana, C. Ammann, N. Buchmann, D. Frank, D. Gianelle, I. A. Janssens, A. Knohl, B. K??stner, E. Moors, O. Roupsard, H. Verbeeck, T. Vesala, C. A. Williams, and G. Wohlfahrt. 2009. Temporal and among-site variability of inherent water use efficiency at the ecosystem level. Global Biogeochem. Cycles 23.
ddb gave a presentation on Carbon and water exchange of California rangelands: an oak savanna, annual grassland and peatland pasture . Cal-Pac Society for Range Management. Santa Rosa, CA. May 14, 2009.
Three students in the Biomet Lab are finishing their Ph.D.s and are graduating this spring. They include Xingyuan Chen, Gretchen Miller, and Ben Runkle. Gretchen as been offered a position as an assistant professor of civil engineering at Texas AM. Congratulations to all.
Four PhDs in BioEnvironmental Engineering who have measured pre-dawn water potential ---and probably the only ones...though there is a MIT student with an email of firstname.lastname@example.org
Prof. Josep Penuelas from Barcelona visited the Biomet Lab for 3 weeks in May. We discussed topics ranging from phenology, biosphere-atmosphere interactions, VOC emissions and ecosystem ecology.
Dennis Baldocchi was appointed Editor in Chief of Journal of Geophysical Research, Biogeosciences. The journal. JGR-Biogeosciences focuses on biogeosciences of the Earth system in the past, present, and future and the extension of this research to planetary studies. The emerging field of biogeosciences spans the intellectual interface between biology and the geosciences and attempts to understand the functions of the Earth system across multiple spatial and temporal scales. Specific topics within the scope of the section include process-based theoretical, experimental, and field studies of biogeochemistry, biogeophysics, atmosphere-, land-, and ocean-ecosystem interactions, biomineralization, life in extreme environments, astrobiology, microbial processes, geomicrobiology, and evolutionary geobiology. If you are developing original papers on process-oriented topics please consider submitting it to JGR Biogeosciences as your first choice.
Baldocchi, D.D.Chen, Q., Chen, X., Ma, S., Miller, G., Ryu, Y., Xiao, J., Wenk, R. and Battles, J. 2009 The Dynamics of Energy, Water and Carbon Fluxes in a Blue Oak (Quercus douglasii) Savanna in California, USA, In: Ecosystem Function in Global Savannas: Measurement and Modeling at Landscape to Global Scales – edited by Michael J. Hill and Niall P. Hanan and published by CRC/Taylor and Francis. Submitted.
A FLUXNET Modeling Workshop was convened at Asilomar, CA between Feb 10 and 13. A cross-section of scientists from the flux measurement and land surface modeling communities met to discuss future interactions among communities and how data can be interchanged to push science to the next level. The flux database has the potential to contribute towards improvements in data assimilation and Bayesian model parameter inversion and towards the use of Machine Learning models that produce regional maps of fluxes
Rodrigo Vargas. Looking deeper into the soil: environmental controls and seasonal lags of soil CO 2 production and efflux across four vegetation types. Ecosystem Science Division, ESPM, Jan 21
ddb attended the NCEAS workshop on Linking carbon storage in terrestrial ecosystems with other climate forcing agents. Santa Barbara, Jan 27-29.
Sebastiaan Luyssaert from University of Antwerp is visiting the Biomet lab for a month as a FLUXNET visiting scientist. He is working on the role of extreme climate conditions on carbon fluxes.
This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.